EP0149428A3 - Device for determining the difference between two different and variable temperatures to control a controlling, regulating, measuring or recording process and utilisation of the device for a calorie measuring apparatus - Google Patents

Device for determining the difference between two different and variable temperatures to control a controlling, regulating, measuring or recording process and utilisation of the device for a calorie measuring apparatus Download PDF

Info

Publication number
EP0149428A3
EP0149428A3 EP84810622A EP84810622A EP0149428A3 EP 0149428 A3 EP0149428 A3 EP 0149428A3 EP 84810622 A EP84810622 A EP 84810622A EP 84810622 A EP84810622 A EP 84810622A EP 0149428 A3 EP0149428 A3 EP 0149428A3
Authority
EP
European Patent Office
Prior art keywords
measuring
regulating
controlling
recording process
difference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84810622A
Other languages
German (de)
Other versions
EP0149428A2 (en
EP0149428B1 (en
Inventor
Jakob Huber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT84810622T priority Critical patent/ATE41069T1/en
Publication of EP0149428A2 publication Critical patent/EP0149428A2/en
Publication of EP0149428A3 publication Critical patent/EP0149428A3/en
Application granted granted Critical
Publication of EP0149428B1 publication Critical patent/EP0149428B1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/121—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element
    • G05D23/122—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element using a plurality of sensing elements
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
    • G05D23/27535—Details of the sensing element
    • G05D23/27537—Details of the sensing element using expansible fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Temperature (AREA)
  • Control Of Turbines (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The interior of two metallic bellows is in fluid connection through capillary tubes with temperature sensors. The temperature sensors are located in places whose relative temperature difference should be determined. In the presence of a temperature difference two springs, each fixed between one of the two metallic bellows and a reference indicator, are pressed together whereby the reference indicator is displaced from its neutral position. The magnitude of this displacement is a measure of the temperature difference and is used by means of switching or recording mechanisms to activate a measuring, controlling, regulating or recording process.
EP84810622A 1984-01-13 1984-12-14 Device for determining the difference between two different and variable temperatures to control a controlling, regulating, measuring or recording process and utilisation of the device for a calorie measuring apparatus Expired EP0149428B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810622T ATE41069T1 (en) 1984-01-13 1984-12-14 DEVICE FOR DETERMINING THE DIFFERENCE BETWEEN TWO DIFFERENT, CHANGING TEMPERATURES TO INITIATE A CONTROL, REGULATION, MEASUREMENT OR REGISTER PROCESS AND USE OF THE DEVICE IN A HEAT METER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH397/84 1984-01-13
CH397/84A CH664029A5 (en) 1984-01-13 1984-01-13 DEVICE FOR DETERMINING THE DIFFERENCE OF TWO DIFFERENT, VARIABLE TEMPERATURES FOR TRIGGERING A CONTROL, CONTROL, MEASUREMENT OR REGISTRATION PROCESS.

Publications (3)

Publication Number Publication Date
EP0149428A2 EP0149428A2 (en) 1985-07-24
EP0149428A3 true EP0149428A3 (en) 1985-08-28
EP0149428B1 EP0149428B1 (en) 1989-03-01

Family

ID=4186083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810622A Expired EP0149428B1 (en) 1984-01-13 1984-12-14 Device for determining the difference between two different and variable temperatures to control a controlling, regulating, measuring or recording process and utilisation of the device for a calorie measuring apparatus

Country Status (6)

Country Link
US (1) US4648246A (en)
EP (1) EP0149428B1 (en)
AT (1) ATE41069T1 (en)
CA (1) CA1239914A (en)
CH (1) CH664029A5 (en)
DE (1) DE3476930D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2032108C (en) * 1990-12-12 1994-12-06 Max Polsky Fluid pressure-responsive unit
KR100911465B1 (en) 2009-05-07 2009-08-11 (주)와이즈산전 Temperature indicating switch for using electric power station

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056084A (en) * 1935-07-18 1936-09-29 Johan C Albrecht Pressure switch
US2404596A (en) * 1943-04-10 1946-07-23 Hoffman Specialty Co Temperature controller
GB596054A (en) * 1944-07-27 1947-12-24 Aquametro Wassermesserfabrik A A calorie computing device for fluid heat carriers
US2663501A (en) * 1951-06-28 1953-12-22 Johann Vaillant Kommanditgesel Device for controlling the fuel supply of heating plants fired with gaseous or liquid fuels, particularly gas-fired liquid heaters
DE1938287A1 (en) * 1968-07-31 1970-02-12 Oval Kiki Kogyo K K Arrangement for determining an integrated calorie value for flowing fluids
DE2008690A1 (en) * 1969-02-26 1970-09-10
US3593578A (en) * 1968-05-09 1971-07-20 Emerson Electric Co Heat transfer meters
DE2136387A1 (en) * 1971-07-21 1973-02-01 Licentia Gmbh THERMOSTATIC VALVE
US4258565A (en) * 1977-05-30 1981-03-31 Yokogawa Electric Works, Ltd. Force detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994983A (en) * 1931-01-27 1935-03-19 Florez De Apparatus for indicating and/or controlling physical changes
US1988776A (en) * 1932-11-21 1935-01-22 Sterling Eng Co Ltd Temperature controlled valve
US2474369A (en) * 1944-08-19 1949-06-28 Gen Controls Co Air circulation control system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056084A (en) * 1935-07-18 1936-09-29 Johan C Albrecht Pressure switch
US2404596A (en) * 1943-04-10 1946-07-23 Hoffman Specialty Co Temperature controller
GB596054A (en) * 1944-07-27 1947-12-24 Aquametro Wassermesserfabrik A A calorie computing device for fluid heat carriers
US2663501A (en) * 1951-06-28 1953-12-22 Johann Vaillant Kommanditgesel Device for controlling the fuel supply of heating plants fired with gaseous or liquid fuels, particularly gas-fired liquid heaters
US3593578A (en) * 1968-05-09 1971-07-20 Emerson Electric Co Heat transfer meters
DE1938287A1 (en) * 1968-07-31 1970-02-12 Oval Kiki Kogyo K K Arrangement for determining an integrated calorie value for flowing fluids
DE2008690A1 (en) * 1969-02-26 1970-09-10
DE2136387A1 (en) * 1971-07-21 1973-02-01 Licentia Gmbh THERMOSTATIC VALVE
US4258565A (en) * 1977-05-30 1981-03-31 Yokogawa Electric Works, Ltd. Force detector

Also Published As

Publication number Publication date
ATE41069T1 (en) 1989-03-15
CH664029A5 (en) 1988-01-29
CA1239914A (en) 1988-08-02
DE3476930D1 (en) 1989-04-06
EP0149428A2 (en) 1985-07-24
US4648246A (en) 1987-03-10
EP0149428B1 (en) 1989-03-01

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